I brewed my first two beers in anticipation of family coming for Thanksgiving and poured the first beer of each with my Father. I hadn't had time to create the taps out of the top so we would just open the top up and grab a tap from a bucket I had on the inside. I was pouring beers for the first few beers but the last day my father poured the last one...

Fast forward to yesterday and I opened my keezer to four gallons of the last keg filling the bottom, CO2 tank empty. When he was done pouring he didn't close the tap all the way and just put it back in the bucket...

Same thing can happen if you have threaded ends on your beer line and they are loose. I had cleaned the lines and had not tightened the nut enough where it attaches to the liquid out disconnect. Just enough for a very slow leak, fortunately I caught it but still wasted a gallon at least.

Same thing can happen if you have threaded ends on your beer line and they are loose. I had cleaned the lines and had not tightened the nut enough where it attaches to the liquid out disconnect. Just enough for a very slow leak, fortunately I caught it but still wasted a gallon at least.

You may have just gotten my Father off the hook, I bet that is what happened. Probably loosened up a bit. Thanks!

Did that once and didn't notice that the poppet valve had stuck just a little. By morning the keg and CO2 tank were empty. Luckily there were only a few pints left in the keg. This was in an upright fridge. Five gallons on the floor would have been quite the mess.